package org.teama;

import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.RequestDispatcher;

/**
 *
 * @author bamidei
 */
public class Login extends HttpServlet {

    /**
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code>
     * methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        String jspName;
        
        /* We should be logged out if we're logging in...assert that is true. */
        assert(request.getSession().getAttribute(SessionAttributes.getActiveUserName()) == null);
                
        //Get the name
        String email = request.getParameter("email");
        
        /* Login the user and then associate them with the session */
        User activeUser = UserListDA.getUser(email);
        if(activeUser != null){
            jspName = "/getIssueList";
            request.getSession().setAttribute(SessionAttributes.getActiveUserName(), activeUser);           
        }
        else {
            request.setAttribute("error", "Unable to login.");
            jspName = "/index.jsp";
        }
        
        //Forward to JSP
        RequestDispatcher dispatcher = getServletConfig().getServletContext().getRequestDispatcher(jspName);
        dispatcher.forward(request,response);
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "This servlet just reurns a random string from a static collection.";
    }// </editor-fold>
}
